Abstract

The reaction of copper and nickel salts with the O,N-donor Schiff base 5-bromo-2-((2-hydroxyethylimino)methyl)phenol (HL) in methanol provides two new complexes [CuL₂] (1) and [Ni₂L₂(N₃)₂(CH₃OH)₂]·CH₃OH (2). The complexes have been characterized by analytical and spectroscopic measurements. The crystal structures of the complexes have been determined by X-ray crystallography. The Cu atom in the mononuclear complex 1 is in square planar coordination. The Ni atoms in the end-on azido bridged dinuclear complex 2 are octahedral coordination. The Schiff base ligands coordinate to the Cu and Ni atoms via NO and NOO donor sets, respectively. The antimicrobial activities of the complexes were assayed.

摘要

铜和镍盐与O，N供体席夫碱5-溴-2-（（2-羟乙基亚氨基）甲基）苯酚（HL）在甲醇中的反应提供了两个新的络合物[CuL ₂ ]（1）和[Ni ₂ L ₂（N ₃）₂（CH ₃ OH）₂ ]·CH ₃ OH（2）。该络合物已经通过分析和光谱测量来表征。配合物的晶体结构已经通过X射线晶体学确定。单核络合物1中的Cu原子处于正方形平面配位。末端叠氮基桥接双核络合物2中的Ni原子是八面体协调。席夫碱配体分别通过NO和NOO供体组与Cu和Ni原子配位。测定了复合物的抗微生物活性。